Compact floribunda rose plant named ‘Poulcas045’

ABSTRACT

A new garden rose plant of the compact floribunda class which has abundant, red flowers and attractive foliage. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

Botanical designation: Rosa hybrid.

Variety denomination: ‘Poulcas045’.

SUMMARY OF THE INVENTION

The present invention constitutes a new and distinct variety of gardenrose plant which originated from a controlled crossing between thefemale seed parent, an unnamed seedling, and the male pollen parent,also an unnamed seedling. Both of the parent varieties are non-patented.

The two parents were crossed during the summer of 2004 and the resultingseeds were planted in a controlled environment in Fredensborg, Denmark.The new variety, named ‘Poulcas045’, originated as a single seedlingfrom the stated cross.

The new variety may be distinguished from its male pollen parent andfemale seed parent primarily by the following characteristics. Thefemale seed parent has pink flowers while the new variety has redflowers. The male pollen parent has 5 to 7 flowers per flowering branch,while the new variety has 15 to 25 flowers per flowering branch.

The objective of the hybridization of this rose variety was to create anew and distinct variety for garden use with unique qualities, such as:

-   -   1. Uniform and abundant red flowers;    -   2. Vigorous, but compact growth when propagated both as a budded        rose and on its own roots;    -   3. Exceptional disease resistance.

This combination of qualities is not present in previously availablecommercial cultivars of this type, known to the inventor, anddistinguish ‘Poulcas045’ from all other varieties of which we are aware.

As part of the rose development program, Mogens N. Olesen germinated theseeds from the aforementioned hybridization during winter of 2004 andconducted evaluations on the resulting seedlings in a controlledenvironment in Fredensborg, Denmark. ‘Poulcas045’ was selected in thespring of 2005 by the inventor as a single plant from the progeny of theaforementioned hybridization.

Asexual reproduction of ‘Poulcas045’ by traditional budding and rootedcuttings was first done by Mogens N. Olesen in the nursery inFredensborg, Denmark in July, 2005. This initial and other subsequentasexual propagations conducted in controlled environments havedemonstrated that the characteristics of ‘Poulcas045’ are true to typeand are transmitted from one generation to the next.

DESCRIPTION OF THE DRAWING

The accompanying color illustrations show as true as is reasonablypossible to obtain in color photographs of this type, the typicalcharacteristics of the buds, flowers, leaves, and stems, of‘Poulcas045’.

Specifically illustrated in FIG. 1 of the drawings are open flowers atvarious stages of development, flower petals detached, and the flower inparts.

Specifically illustrated in FIG. 2 of the drawings are juvenile leavesshowing anthocyanin, mature leaves, stems, and a flowering branchshowing multiple flower buds. Plants shown are 2 years of age.

DETAILED DESCRIPTION OF THE VARIETY

The following is a description of ‘Poulcas045’, as observed in itsgrowth in a field nursery in Marion County, Oreg. Observed plants are 2years of age, and were grown on their own roots. Color references aremade using The Royal Horticultural Society (London, England) ColourChart, 2001, except where common terms of color are used.

For a comparison, several physical characteristics of the rose variety‘Poultry’, U.S. Plant patent application Ser. No. 10/976,225, nowabandoned, are compared to ‘Poulcas045’ in Chart 1.

CHART 1 ‘Poulcas045’ ‘Poultry’ Petal Count 30 petals 70 to 80 petalsFlower Diameter 80 mm 50 to 80 mm General Tonality Red Group 45B RedGroup 53A of Flower Color

Flower and Flower Bud

-   Blooming habit: Continuous.-   Flower bud:    -   -   Size.—Upon opening, 25 mm in length from base of receptacle            to end of bud. Bud diameter is 12 mm.        -   Bud form.—Ovoid.        -   Bud color.—As sepals divide petals are Greyed-Purple Group            183A and Red Group 46B.        -   Sepal inner surface.—Color: Yellow-Green Group 145A with            anthocyanin the color of Greyed-Purple Group 183C. Surface:            Lightly pubescent.        -   Sepal outer surface.—Color: Yellow-Green Group 144A with            strong anthocyanin Greyed-Purple Group 183A. Texture:            Smooth.        -   Sepal shape.—Apex: Cirrhose. Base: Flat at union with            receptacle.        -   Sepal margin.—Margins have moderate foliaceous appendages on            three of the five sepals.        -   Sepal size.—35 mm long, 10 mm wide.        -   Receptacle.—Texture: Smooth. Size: 5 mm in height, 6 mm            wide. Color: Yellow-Green Group 144A with strong anthocyanin            the color of Greyed-Purple Group 183A. Shape: Campanulate.        -   Pedicel.—Surface: Rough with many small prickles. Length: 40            to 50 mm. Diameter: 3 mm on average. Color: Yellow-Green            Group 144A with strong anthocyanin the color of            Greyed-Purple Group 183A. Strength: Strong.        -   Peduncle.—Length: 3 to 10 cm. Diameter: About 4 mm. Color:            Yellow-Green Group 146A with strong anthocyanin the color of            Greyed-Purple Group 183A. Texture: Rough with many small            prickles.-   Flower bud development: Flower buds are borne in panicles of 15 to    25 flower buds per stem. Panicles are about 20 cm in diameter.-   Flower bloom:    -   -   Fragrance.—Moderate, old rose scent.        -   Duration.—The blooms have a duration on the plant of            approximately 10 days. Petals fall cleanly away from plant            after flowers have fully matured.        -   Size.—Flower diameter is 80 mm when open. Flower depth is 30            mm.        -   Flower shape.—Rosette, very double flower with many slightly            overlapping petals of different sizes.        -   Shape of flower, side view.—The upper portion is a flattened            convex. The lower portion is concave.-   Petalage: Under normal conditions, flowers have 30 petals total, 5    to 7 of which are petaloids.-   General tonality of flower: Open flowers are Red Group 45B.-   Petal color:    -   -   Upon opening, outer petals.—Upper surface: Red Group 45B.            Lower surface: Red Group 47B.        -   Upon opening, inner petals.—Upper surface: Red Group 45B.            Lower surface: Red Group 47B.        -   Basal petal spots, upon opening.—Upper surface: Yellow Group            7A. Lower surface: Yellow Group 7A.        -   After opening, outer petals.—Upper surface: Red Group 45B.            Lower surface: Red Group 47B.        -   After opening, inner petals.—Upper surface: Red Group 45B.            Lower surface: Red Group 47B.        -   Basal petal spots, after opening.—Upper surface: Yellow            Group 7A. Lower surface: Yellow Group 7A.-   Petals:    -   -   Petal reflex.—Moderately reflexed.        -   Margin.—Entire. Moderate undulations.        -   Shape.—Generally broad elliptical. Apex shape: Rounded. Base            shape: Rounded.        -   Size.—About 40 mm (l)×40 mm (w).        -   Texture.—Smooth.        -   Thickness.—Average.-   Petaloids:    -   -   Size.—20 mm (l) by 20 mm (w).        -   Quantity.—5 to 7.        -   Shape.—Irregular.        -   Color.—Upper surface is Red Group 45B. Lower surface is Red            Group 47B. Petaloid basal zone is colored Yellow Group 7A on            the upper and lower surfaces.-   Reproductive flower parts:    -   -   Pollen.—None observed.        -   Anthers.—Size: 2 mm in length. Color: Greyed-Yellow Group            162A. Quantity: 65 on average.        -   Filaments.—Color: Yellow Group 5A. Length: 5 mm.        -   Pistils.—Length: 6 mm. Quantity: 40 on average.        -   Stigmas.—Color: Orange-White Group 159A.        -   Styles.—Color: Greyed-Red Group 181D.        -   Location of stigmas.—Superior in location relative to the            length of the filaments and the height of the anthers.        -   Hips.—None observed to date.

Plant

-   Plant growth: Upright, bushy. Plants are 60 cm in height, and 50 cm    wide.-   Stems:    -   -   Color.—Juvenile growth: Greyed-Purple Group 187A. Mature            growth: Yellow-Green Group 144A.        -   Length.—On average, canes are 30 cm from the base of the            plant to the flowering portion.        -   Diameter.—8 mm.        -   Internodes.—On mature canes about 40 mm between nodes.        -   Surface texture.—Young wood: Rough with small prickles.            Older wood: Smooth.-   Long prickles:    -   -   Incidence.—7 prickles per 10 cm of stem.        -   Size.—Average length of prickles on mature stems is 5 mm.        -   Shape.—Upper portion is linear. Lower portion is concave.        -   Color.—Juvenile prickles: Greyed-Purple Group 187A. Mature            prickles: Greyed-Purple Group 187B.-   Plant foliage:    -   -   Compound leaf.—About 160 mm (l)×100 (w).        -   Quantity.—2 leaves per 10 cm of stem on average.        -   Leaf bearing angle to the stem.—45 degrees.        -   Color of juvenile foliage.—Upper side: Yellow-Green Group            146A with strong intonations of Greyed-Purple Group 187A.            Lower side: Greyed-Purple Group 187A.        -   Color of mature foliage.—Upper side: Yellow-Green Group            147A. Lower side: Yellow-Green Group 147B.-   Plant leaves and leaflets:    -   -   Stipules.—Size: 25 mm long, 6 mm wide. Quantity: 2 per            compound leaf. Shape: Linear, slightly broad based with            outward extending apices. Margins: Finely serrated. Color:            Yellow-Green Group 144A.        -   Petiole.—Length: 30 mm. Diameter: 1.5 mm.        -   Upper surface.—Color: Yellow-Green Group 144A with light            intonations of Greyed-Red Group 179A.        -   Lower surface.—Color: Yellow-Green Group 144A.        -   Rachis.—Length: 65 mm. Upper surface: Color: Yellow-Green            Group 144A with light intonations of Greyed-Red Group 179A.        -   Lower surface.—Color: Yellow-Green Group 144A. Observations:            Small prickles        -   Leaflet.—Quantity: Normally 5 to 7 leaflets. Margins:            Serrated. Size: On average terminal leaflets are 55 mm long,            50 mm wide. Shape: Generally ovate. Base: Rounded. Apex:            Mucronate. Texture: Smooth. Thickness: Average. Arrangement:            Odd pinnate. Venation: Reticulate. Glossiness: Not glossy.-   Disease resistance: Above average resistance to powdery mildew    Sphaerotheca pannosa, downy mildew Peronospora sparsa, rust    Phragmidium sps., black spot Diplocarpon rosae, and Botrytis cinerea    under normal growing conditions.-   Cold hardiness: The variety is tolerant to USDA Cold Hardiness Zone    6.-   Heat tolerance: The variety has been found to be suitable for    climate conditions found in the American Horticulture Society heat    zone 7.

I claim:
 1. A new and distinct variety of rose plant of the compactfloribunda rose class named ‘Poulcas045’, substantially as illustratedand described herein, due to its abundant red flowers, diseaseresistance, and extended period of bloom.